baber/WOPTO huggingface dataset:
Patent GB-539677-A (GB)
Title: Improvements in aircraft of the helicopter type
IPC: B64C27/04
Filed: 1940-03-19
Abstract: 539,677. Aircraft. OPPERMAN, O. R. March 19, 1940, No. 5046. [Class 4] In aircraft of the helicopter type and wherein the lift is in part effected by the adaptation of the air currents set up by the rotation of the screws to produce aerodynamic re-actions on surfaces disposed in the path of the air currents, the re-action surfaces are formed with annular ridges or steps. In the form shown the supplementary lifting surfaces e, e', are located below a pair of direct lift oppositely rotating airscrews a,a<1> and are provided with annular ridges f, f', or they may be stepped or of louvre form so that the air currents sweeping thereover produce regions of low pressure above them. The airscrews and the supplementary lifting surfaces may be surrounded by open-ended cowlings d, d', part cylindrical and part frustoconical, as shown. Stabilizing wings w, Fig. 3, may be provided to assist horizontal flight, the wings being foldable close against the sides of the fuselage. For this purpose the folding mechanism is driven from one of the motors c<1> of the lifting aircrews through clutches m. The drive is transmitted through bevel gearing k to a shaft j journalled in a swivelling frame h at right angles to a shaft g pivoted in the frame to which the inner end of the wing is attached. The shafts j and g engage through gearing i and the wing is thereby firstly retracted through 90 degrees about a vertical axis. The gearing i is then locked and continued rotation of the shaft j causes the frame h with the shaft g and the wing to rotate through 90 degrees about a horizontal axis ; the duplicate mechanism thus enables both wings to take up the position shown.
Patent GB-1183894-A (GB)
Title: Light Diffusing Surfaces for Glass-Ceramic Articles
IPC: C03C17/23
Filed: 1968-02-01
Abstract: 1,183,894. Glass-ceramic articles. CORNING GLASS WORKS. 1 Feb., 1968 [2 Feb., 1967], No. 5120/68. Heading C1M. A glass ceramic article with a light-diffusing surface is produced by coating a surface of a glass article with a metal compound which thermally decomposes to a reactive decomposition product at a temperature below that at which the glass crystallizes and then heating the glass to a temperature at which the glass will crystallize and holding the temperature for a sufficient time to change the glass to a glassceramic, reacting the decomposition product of the coating with the glass surface during the heat treatment, thus forming flat, plate-like light diffusing crystals which roughen the surface. Metal compounds include CaCO3, MgCO3, ZnCl2, ZnO, BaCO3, BaCl2, H2O, BaF2, BaSO4, CaF2, CaCl2, NaHCO3, SrF2, SrCO3, Li2SO4.H2O, Li2CO3, KCl, K2CO3, CdCO3, NaCl. A diluent such as TiO2 or SiO2 and/or ZrO2 may be added. Mixtures of the above metal compounds without a diluent may also be used, and additives such as CO3O4 which produce a blue colour may be added to the coating mixture. The coatings can be applied as an aqueous slurry which can be sprayed from an air-spray gun or applied with a roller or brush. Other solvent vehicles can be used, e.g. NaCl or Na2CO3 can be applied in an oil vehicle. Many glass substrate compositions are given, one of which is in per cent by weight: SiO2, 64; Al2O3, 20; B2O3, 2À0; Na2O, 0À4; K2O, 0À2 MgO, 1À7; CaO, 0À1; ZnO, 2À5; Li2O, 3À6 TiO2, 4À5; As2O3, 1À0.
Patent GB-570825-A (GB)
Title: Improvements in or relating to urinals
IPC: E03D13/00
Filed: 1944-03-20
Abstract: 570,825. Urinals. SHIRES & CO. (LONDON), Ltd., and HARRISON, F. C. March 20, 1944, No. 5167. [Class 26] In a urinal formed by a pan fitted with a water trap, the pan 1, in plan, is substantially . triangular in shape, and the top slopes downwardly from the back 3 towards the front 4. A flushing cistern 10 is formed integrally with or bolted directly to the rear of the upper edge of the pan. The pan is substantially of inverted pyramidal shape, with the trap 5 at the apex of the pyramid, and may be bolted to a wall or formed integrally with a floor pedestal.
Patent GB-838854-A (GB)
Title: Improvements in the production of acrylic acid and its salts
Filed: 1957-02-15
Abstract: Acrylic acid or salts thereof are prepared by the reaction of acetylene, carbon monoxide and water in the presence of a carbonylation catalyst at a temperature above 180 DEG  C. and at a minimum pressure of 75 atmospheres absolute using an acetylene-carbon monoxide containing gas mixture having not more than 23% by volume of acetylene based on the carbon monoxide-acetylene content, and if desired, converting the acrylic acid formed into a salt.  The reaction may be effected in the presence of an alkaline agent such as an alkali carbonate, in an amount such that all or part of the acrylic acid formed is neutralized during the reaction.  Reaction temperatures of 220-300 DEG  C. are preferred.  The carbon monoxide may contain inert gases.  The catalyst may be a nickel salt such as those of acetic, propionic, acrylic, succinic, citric, tartaric, adipic, or phthalic acid; complex alkali nickel cyanides, which may be formed in situ from a nickel salt and an alkali cyanide, may also be used; activators such as cuprous salts may be present.  Generally, the reaction is effected in the absence of organic solvents.  The process may be effected continuously and unused carbon monoxide may be recycled.  In typical examples: (1) an aqueous solution of nickel sulphate, potassium cyanide and sodium carbonate and a gaseous CO/C2H2 mixture containing 17% by volume of acetylene are passed upwardly through a stainless steel tube under a pressure of 200 atms. absolute at 245-250 DEG  C., yielding a mixture of sodium, potassium and nickel acrylates from which acrylic acid is obtained on acidification; (4) an aqueous solution of nickel acrylate and a CO/C2H2 mixture containing 20% of acetylene are passed through a similar reactor at 280-290 DEG  C. and 200 atms. yielding acrylic acid.  A graph is given showing the relationship between the decomposition limiting pressure of a mixture of acetylene and carbon monoxide and the acetylene content of the mixture.
Patent GB-765403-A (GB)
Title: Improvements in or relating to pressure-operated electrical switches
IPC: H01H35/34
Filed: 1955-02-22
Abstract: 765,403. Actuation of switches. TILCH, E. Feb. 22, 1955 [Feb. 23, 1954], No. 5286/55. Class 38(5) A fluid pressure operated switch, suitable for use in the oil pressure braking system of a car, comprises a central rod c attached to a diaphragm b and opposed' by a spring g and carrying contact discs d, e, and two fixed contact rods f, f<SP>1</SP> whose inner ends project into the space between the two contact discs so that the fixed contacts are bridged by a disc on increase or on decrease of pressure. The switch may be incorporated in a warning circuit (Fig. 2, not shown) which includes rear stopping lights and a driver's indicator light so that indication is given to the driver either when increasing pressure due to the application of the brakes operates the switch, or when decreasing pressure due to leakage &c. operates the switch. The switch chamber is made dust proof.
Patent GB-575580-A (GB)
Title: Improvements in or relating to snap-action electric switches
IPC: H01H23/12
Filed: 1944-03-23
Abstract: 575,580. Snap-action switches. SMART & BROWN (ENGINEERS), Ltd., and SONNENFELD, H. March 23, 1944, No. 5425. [Class 38 (v)] In a snap-action switch with a dolly 4 or other lever controlled by a dead-centre spring 5, the dolly carries a contact shoe 2 which enters as a wedge between the two divergent contact plates 1. The plates 1 diverge away from the cover 9 as well as in the manner shown in Fig. 2 and the shoe 2 is preferably loosely pivoted at 12 and controlled by a spring 15 so as to be selfaligning. The deadcentre compression spring 5 is arranged between the lower end of the dolly, which forms a loop, and a fixed pivot 18.
Patent GB-700770-A (GB)
Title: Means intended primarily for feeding pigs
IPC: A01K5/02
Filed: 1951-03-07
Abstract: 700,770. Animal feeding troughs. TUDDENHAM, J. G. Nov. 14, 1951 [March 7, 1951], No. 5542/51. Class 5 (2) A feeding trough for piglets comprises a hopper 1 automatically feeding a trough 4 extending across a series of cubicles. Triangular partitions 5 separate the cubicles, limiting access to a single animal. The section of the trough within each cubicle is closed by a pivoted cover 6 raisable by the beast. A single cover pivoted at its front edge 13 extends over the upper parts of the cubicles, and over the upper parts 10, 11 of the hopper. Chains 9 extending through the food agitate the latter and prevent clogging.
Patent GB-1464781-A (GB)
Title: Fluid-flow valve arrangement
IPC: B62D5/08
Filed: 1974-02-06
Abstract: 1464781 Power-assisted steering mechanism DANFOSS AS 6 Feb 1974 [7 Feb 1973] 05554/74 Heading B7H A steering motor 1 in a hydrostatic steering system is connected to reversible flow and return passages 19, 36 and 20, 41 in which are provided throttle valves 133, 138 and having associated therewith a separate control member 137, 142 having a pressure face exposed to the pressure in a pilot line 145, 146 including a flow restriction 147, 148 and connected to the passages 36, 41 between the other throttle valve 133, 138 and the steering motor 1. Each throttle valve 133, 138 is held in a closed position by a spring 134, 139 until pressure fluid is supplied to one of the passages 19, 20 whereupon the valve in that passage is opened by the pressure differential across it and the other valve is opened by the pressure appearing in the pilot line 145, 146 connected to the passage 36, 41 upstream of the first valve. The passages 19, 36 and 20, 41 are part of a power circuit through which pressure fluid from a pump 13 is directed to the steering motor 1 according to the flow in a control circuit through which fluid flows to the motor 1 from a control unit 5 including a metering device. In accordance with Specification 1,464,782, the opening of the throttle valves 133, 138 and similarly arranged throttle valves 123, 128 in the control circuit is arranged to stand in a predetermined relation to the pressure difference thereacross, and a combined reversing and pressure comparator valve 116 maintains the pressure upstream of each throttle valve 133, 138 in proportion to the pressure upstream of the corresponding throttle valve 123, 128 so that the quantity of fluid supplied to the motor 1 from the power circuit is a fixed multiple of that supplied from the control circuit. The throttle valves may have closure and throttling portions individually formed thereon, and the throttle valves on corresponding sides of the power and control circuits may be formed on a single spool.
Patent GB-344195-A (GB)
Title: Device for lifting and lowering the spindle and ring rails of spinning, twisting and the like machines
IPC: D01H1/02
Filed: 1930-02-19
Abstract: 344,195. Spinning-machine building- motions. KEYSER, J. J., 37, Zeglistrasse, Aarau, Switzerland. Feb. 19, 1930, No. 5599. [Class 120 (ii).] The gear by which the reciprocation of the spindle rail or ring rail of a spinning or twisting machine &c. is effected is carried directly on the rail, thus reducing lost motion, &c. A worm 19 splined on a vertical shaft 20 rotates a shaft 42 having an eccentric part 44 carrying on ball bearings a planetary member with teeth, 47, 46, 48 respectively engaging rings 51, 39, 55 the magnitude of the diameters being in the order named; thus by alternately locking the rings 51, 55, the ring 39 and a pinion 37 integral therewith are rotated in reverse directions. The pinion 37 engages a vertical rack 14 thereby reciprocating the gear and casing 17 and the ring rail carried therewith. The rings 51, 55 are locked by pawls 59, 60 on a trip lever shaft 61 engaging external teeth on the rings, the trip lever having a spring 72 and being actuated at the ends of the reciprocation, by stops on a sleeve 29 sliding on a vertical screwed rod 30 and guide-rod 74, the sleeve 29 being moved along the rod 30 by a nut rotated by a ratchet wheel the pawl of which is actuated by the reciprocating rail. The rising and the falling of the rail are preferably effected at different speeds.
Patent GB-470972-A (GB)
Title: Improvements in and relating to the casting of metal objects
IPC: B22D27/04
Filed: 1936-02-25
Abstract: 470,972. Chills. PARSONS & CO., Ltd., C. A., and SMITH, R. H. Feb. 25, 1936, No. 5610. [Class 83 (i)] Mould and core materials.-In order to cast articles, such as an iron turbine casing A having thick portions 2, 3, requiring to be machined, adjacent thin portions 4, the mould S has chills C of carborundum or a material containing it mixed with cement or other bonding material to define said thick portions. The chills may be moulded or be built up from bricks 5 and packed with loam.
Patent GB-652292-A (GB)
Title: Improvements in closure devices for collapsable tubes
IPC: B65D47/24
Filed: 1948-02-25
Abstract: 652,292. Stoppers. KISSLING, H. Feb. 25, 1948, No. 5626. Convention date, March 4, 1947. [Class 125(iii)] A closure for r collapsable tube comprises a hollow liner 6 having a shoulder 7 seating on the tube-nozzle 2, anc an enlarged dia meter portion 7a closed by a conica wall 8 with apertures 9 which are sealed by a conical wall 10 of a cap 3 as shown. The cap 3 is partly unscrewed to uncover the apertures 9 and thus permit the contents of the tube to pass therethrough, between the outer face of the cap 3 to the outlet 4 therein. Specification 462,421 is referred to.
Patent GB-155727-A (GB)
Title: Coupling attachment for tractors
IPC: B60D1/44
Filed: 1920-02-25
Abstract: 155,727. Sime, R. Feb. 25, 1920. Couplings for tractors.-In a tractor coupling in which the coupling member can be adjusted transversely, the member 3 is formed with its forward portion as a nut 4 engaging a leading-screw 6, and is provided with a projection which takes the load and engages a rib 5 on a guide 1 fixed to the tractor frame 2. The member is prevented from disengaging the ledge 5 by means of a bar 11, and the screw is operated by bevel gear from a vertical shaft 9.
Patent GB-394925-A (GB)
Title: Opening means for cans
IPC: B65D43/26
Filed: 1933-02-24
Abstract: 394,925. Opening means for cans. WELS, F. VON, 4, Krohnskamp, and EKERT, J., 51, Fuhlentwiete, both in Hamburg, Germany. Feb. 24, 1933, No. 5648. Convention date, Feb. 24, 1932. [Class 66.] The projecting ends g, h of a bail handle e formed from metal strip and pivotally attached to the rim of the lid of a can are adapted to engage a shoulder b on the body part and cause the lifting of the lid when the handle is raised. The metal strip is preferably of slightly curved cross-sectional form.
Patent GB-1381255-A (GB)
Title: Switch with a strap mounting device
IPC: H01H36/00
Filed: 1973-02-05
Abstract: 1381255 Releasable fastenings ROBERT BOSCH GmbH 5 Feb 1973 [13 March 1972] 5673/73 Heading E2A [Also in Division H1] A switch 2 is mounted on a member such as a cylinder 1 by means -of a strap 11  attached to the switch casing 3 to pass around the cylinder 1 to clamping means 15, 16 cooperating with a tensioning screw 21 mounted on the casing 3. The clamping members or jams 15, 16 are held by screws 17, 18 and the member 16 has a projection 16a overlieing the jaw 15 to hold the strap 11 and the screw 21 has a spring 23 between its head 22 and a bridge-piece 23'. The casing 3 has a cavity 4 which is filled with a casting resin after mounting a printed circuit board 7, need contact unit 8, and an electronic amplifier (not shown) therein. The cylinder 1 may contain a piston mounted permanent magnet (not shown) for operation of the contact unit 8 which may be electrically screened by an earthed guard plate 24 and surrounded by a stratum of silicone resin.
Patent GB-256288-A (GB)
Title: Improvements in fuses for projectiles
IPC: F42C9/04
Filed: 1925-03-02
Abstract: 256,288. Pearson, C. H. March 2, 1925. Projectile fuzes. - The timing-disc 62 of a mechanical time fuze is keyed to its spindle 30, and this spindle is normally loose within the hub 34 of a pinion 35, which is adapted to set back on discharge, whereby the pinion becomes clutched to the spindle. For this purpose, the hub and the spindle are tapered to form a friction clutch.
Patent GB-397036-A (GB)
Title: Improvements in or relating to high frequency electrical oscillation generators
IPC: H03C5/04
Filed: 1933-02-24
Abstract: 397,036. Valve modulating circuits. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL, 79, Boulevard Haussmann, Paris. Feb. 24, 1933, No. 5699. Convention date, March 31, 1932. [Classes 39 (i) and 40 (v).] A valve oscillator having a characteristic such that the oscillatory output decreases above a predetermined value of anode potential, the anode current there-above being constant, is modulated by varying the anode potential over a range lying above said predetermined value. As described the valve is a split-anode magnetron and may be modulated by including the secondary T, Fig. 4, of a microphone transformer in the anode feed circuit, the oscillatory circuit being composed of the lead connected between the two anodes and shown coupled to an aerial. Alternatively an impedance Z, Fig. 5, may be included in the anode feed circuit, associated, as shown, with a screen-grid modulating valve L whose control grid receives speech potentials due to a microphone M. The magnetic field in which the valve is immersed may be modulated in strength, in addition, by. placing a magnetic-field producing coil M, Fig. 8, in the anode circuit of the modulating valve L. The two modulating actions may be arranged to act in aiding or opposing relation, the latter connection being a method of stabilizing the amplitude of the oscillatory current produced by a magnetron. Thus the energizing circuit of the field coil may include the primary of a transformer whose secondary T, Fig. 9, is connected in the anode feed circuit so that fortuitous changes in the field coil current produce magnetic and anode modulation effects which balance out. The magnet windings ZM, T, Fig. 10, may act also as the impedances Z. M, Fig. 8, and the transformer T, Fig. 9.
Patent GB-511785-A (GB)
Title: Improvements in or relating to machines for moulding and embossing sweets
IPC: A23G3/20
Filed: 1938-02-23
Abstract: 511,785. Moulding plastic sweetmeats. HENKEL, A. A. Feb. 23, 1938, No. 5702. Convention date, March 20,1937. [Class 87 (ii)] In a machine for moulding and embossing sweets in tablet form wherein a rope 39 of plastic sugar is passed between and severed by an endless chain of moulds 6, 19 and embossed by co-operating lateral embossers 22, adjacent embossers are moved to embossing positions which are relatively staggered whereby adjacent tablets are completely separated, the embossers remaining in such positions until they are opened to release the tablets. The embossers 22 may be mounted on rods 23 operated by fixed cams 25, 26 and the rods may be alternately long and short, Fig. 3. In another form the rods are all of the same length and the embossing heads are alternately deep and shallow. The rods may be returned outwardly by fixed cams 29 engaging projections 28 on the rods. The half-moulds 6 are provided on an inner rotary member 5 mounted on a shaft 9 and secured between two discs having flanges whereto the half-moulds 19 are pivoted. The half-moulds 19 are moved to and retained in closed position by a fixed cam 20, 20a. They may open under gravity or by cam means. The rods 22 are guided in apertures in the flanges, one of which is formed as a driving gear
Patent GB-1455391-A (GB)
Title: Self-cooling wheel
IPC: B60C23/18
Filed: 1974-02-07
Abstract: 1455391 Cooling vehicle tyres Y TSURUTA 7 Feb 1974 [26 April 1973] 05703/74 Heading B7C A vehicle tyre and wheel assembly comprises a tyre 1 having an intermediate layer consisting of two portions 4, 4<SP>1</SP> each being constituted of a different material (e.g. iron and copper). The portions are in contact within the tyre and are capable of inducing the Peltier effect. One portion 4 is in electrical contact with a plate 5 via the wheel rim, and the other portion 4<SP>1</SP> is in electrical contact with a disc 5<SP>1</SP>. The disc 5<SP>1</SP> and earthed plate 5 preferably each carry vanes 6<SP>1</SP>, 6 by means of which heat generated within the tyre during running can be dissipated into the atmosphere. When switch 10 is closed the current passing through brush 9, disc 5<SP>1</SP>, portions 4, 4<SP>1</SP>, the rim and plate 5 to earth will cool the tyre due to the Peltier effect. This cooling is particularly advantageous when the wheel is braked.
Patent GB-965169-A (GB)
Title: Improvements in or relating to rotary fluid-flow machines such as axial flow compressors
Inventor: HAWKINS JOHN WILLIAM
IPC: F01D17/16
Filed: 1962-02-14
Abstract: 965,169. Compressor blades; axial flow compressors. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Jan. 23, 1963 [Feb. 14, 1962], No. 5733/62. Headings F1C and F1T. An aerofoil blade for a fluid flow machine such as an axial flow compressor has a root pivoted in a support structure and two screwed members engaging in tapped bores in the structure and abutting against the root such that each screwed member imparts to the root a turning moment about the pivotal axis opposite to that of the other screwed member so as to adjust the stagger angle of .the blade. A compressor inlet guide blade having a circular root 2 is retained in a bore 4 of an annular flanged ring 5 within the compressor casing 10 by a circlip 8 and shoulder 6 on the aerofoil portion 1. Two screws 11 abut against a surface 12 at the bottom of a slot 3 in the root 2 and may be adjusted to alter the stagger angle of the blade.
Patent GB-329652-A (GB)
Title: Method of producing carbon granules
IPC: C01B31/02
Filed: 1929-02-21
Abstract: 329,652. Standard Telephones & Cables, Ltd., (Western Electric Co., Inc.). Feb. 21, 1929. Granulating - machines. - Spherical carbon granules are produced by subjecting a mass of carbonizable material in its liquid or plastic form to conditions which permit it to assume a spherical shape due to surface tension, hardening and then carbonizing the sphere. In an example, cellulose dissolved in a solution of zinc chloride is forced through a jet 6 by means of compressed air, and a revolving knife 8 breaks the extruded liquid into drops, which are hardened by falling through alcohol in a container 10 several feet in height. The cellulose pellets are removed when hard and are carbonized by heating in an inert atmosphere. Other suitable forms of apparatus are described in which the carbonizable material is broken up into small pellets by forcing through a jet by means of an intermittent supply of compressed air; this latter is obtained in one form of apparatus by means of a reciprocating plunger and in another by a vibrating ball valve. In another form, a stream of air is blown at right angles to the jet of carbonizable material and thus breaks it up into drops. In a modification of the invention, a synthetic resin is crushed and screened to give particles of the desired bulk, which particles are then placed on a surface which they will not wet, such as an oxidized metal, or asbestos surface, and are heated electrically. The particles melt and are immediately drawn up into substantially spherical form due to surface tension, after which they are allowed to cool and solidify. The products are carbonized by first heating for 20 to 30 hours to a temperature which continuallv rises from 70‹ to about 290‹ C.; after the preliminary stage which produces complete polymerization and hardening of the condensation products, the spheres are packed into carbon or graphite containers, and carbonized for about one week.